I have been on 200 mg of trazodone, along with 25 mg of Seroquel for 15 years, and it worked great. I slept fine and had no issues. Now, all of a sudden I am getting a fast pulse after I take it so I can't relax and sleep and insomnia. I want to discontinue it, but it seems that doctors don't like to take people off medications if they have done well with it in the past. My question is: Could trazodone cause problems of insomnia and fast pulse after 15 years of success?